自从上个世纪90年代以来,全球各地区以及跨地区的区域一体化协议(RIA)不断增加,其一体化的深度也不断加强。欧洲共同体已发展成为单一市场,并于1999年诞生了欧元,采用了共同的货币。与此同时,欧盟外的其他欧洲国家都在积极申请加入欧盟,欧盟与东欧国家的入盟谈判已结束,欧盟已? Since the 1990s, the regional integration agreements (RAs) of various regions and regions across the world have been continuously increasing, and the depth of their integration has also been continuously strengthened. The European Community has evolved into a single market and the Euro was born in 1999 with a common currency. At the same time, other European countries outside the EU are actively applying to join the EU. The EU’s accession negotiations with EU countries have ended. Has the EU already?